PLAINE DE VILLEVEYRAC-MONTAGNAC
— Protected Area Boundary | | A | B | C | | | | | | | Share | 70 % | 30 % | 70 % | 20 % | 10 % | 70 % | 30 % | | Soil Type | Lithic Leptosols | Chromic Cambisols | Lithic Leptosols | Calcaric Cambisols | Chromic Cambisols | Rendzic Leptosols | Calcaric Cambisols | | Topsoil Texture | Medium | Fine | Medium | Fine | Fine | Medium | Medium | | Reference Depth | 10 cm | 100 cm | 10 cm | 100 cm | 100 cm | 30 cm | 100 cm | | Drainage | Imperfectly | Imperfectly | Imperfectly | Imperfectly | Moderately well | Imperfectly | Moderately well | | Available Water Capacity | 15 mm | 15 m | 15 mm | 15 m | 75 m | 15 mm | 100 m | | Phase 1 | Stony | Lithic | Stony | Lithic | Stony | Stony | Stony | | Phase 2 | | Stony | | Stony | | | | | Root Obstacle | | 40 - 60 cm | | 40 - 60 cm | 60 - 80 cm | | 60 - 80 cm | | Impermeable Layer | | None to 150 cm | | None to 150 cm | None to 150 cm | | None to 150 cm | | Soil Water Regime | | Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month | | Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month | Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month | | Not wet within 80 cm for over 3 months, nor wet within 40 cm for over 1 month | | Topsoil Properties | | Gravel | 21 % | 2 % | 21 % | 5 % | 2 % | 16 % | 6 % | | Sand | 42 % | 21 % | 42 % | 19 % | 21 % | 37 % | 36 % | | Silt | 34 % | 29 % | 34 % | 32 % | 29 % | 44 % | 43 % | | Clay | 24 % | 50 % | 24 % | 49 % | 50 % | 19 % | 21 % | | USDA Texture | Loam | Clay | Loam | Clay | Clay | Loam | Loam | | Reference Bulk Density | 1.38 g/cm³ | 1.24 g/cm³ | 1.38 g/cm³ | 1.24 g/cm³ | 1.24 g/cm³ | 1.41 g/cm³ | 1.39 g/cm³ | | Bulk Density | 1.3 g/cm³ | 1.23 g/cm³ | 1.3 g/cm³ | 1.28 g/cm³ | 1.23 g/cm³ | 1.24 g/cm³ | 1.41 g/cm³ | | Organic Carbon | 1.61 % | 1.43 % | 1.61 % | 0.87 % | 1.43 % | 2.13 % | 0.65 % | | PH | 7.5 | 6.8 | 7.5 | 7.8 | 6.8 | 7.5 | 8 | | Clay Cation Exchange Capacity | 42 cmol kg⁻¹ | 32 cmol kg⁻¹ | 42 cmol kg⁻¹ | 57 cmol kg⁻¹ | 32 cmol kg⁻¹ | 80 cmol kg⁻¹ | 52 cmol kg⁻¹ | | Soil Cation Exchange Capacity | 16 cmol kg⁻¹ | 21 cmol kg⁻¹ | 16 cmol kg⁻¹ | 30 cmol kg⁻¹ | 21 cmol kg⁻¹ | 27 cmol kg⁻¹ | 16 cmol kg⁻¹ | | Base Saturation | 100 % | 94 % | 100 % | 100 % | 94 % | 100 % | 100 % | | Total Exchangeable Bases | 15.5 cmol kg⁻¹ | 22.9 cmol kg⁻¹ | 15.5 cmol kg⁻¹ | 46.6 cmol kg⁻¹ | 22.9 cmol kg⁻¹ | 28.8 cmol kg⁻¹ | 24.3 cmol kg⁻¹ | | Calcium Carbonate | 3.9 % | 0.2 % | 3.9 % | 4.9 % | 0.2 % | 6 % | 7 % | | Calcium Sulphate | 0 % | 0 % | 0 % | 0.1 % | 0 % | 0 % | 0 % | | Exchangeable Sodium | 3 % | 1 % | 3 % | 1 % | 1 % | 2 % | 1 % | | Electrical Conductivity | 0.1 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.2 dS m-1 | 0.1 dS m-1 | 0.1 dS m-1 | 0.4 dS m-1 | | Subsoil Properties | | Gravel | | 4 % | | 5 % | 4 % | | 10 % | | Sand | | 21 % | | 23 % | 21 % | | 34 % | | Silt | | 28 % | | 35 % | 28 % | | 43 % | | Clay | | 51 % | | 42 % | 51 % | | 23 % | | USDA Texture | | Clay | | Clay | Clay | | Loam | | Reference Bulk Density | | 1.23 g/cm³ | | 1.26 g/cm³ | 1.23 g/cm³ | | 1.38 g/cm³ | | Bulk Density | | 1.38 g/cm³ | | 1.35 g/cm³ | 1.38 g/cm³ | | 1.45 g/cm³ | | Organic Carbon | | 0.58 % | | 0.39 % | 0.58 % | | 0.43 % | | PH | | 7.2 | | 8.1 | 7.2 | | 8.1 | | Clay Cation Exchange Capacity | | 31 cmol kg⁻¹ | | 58 cmol kg⁻¹ | 31 cmol kg⁻¹ | | 54 cmol kg⁻¹ | | Soil Cation Exchange Capacity | | 23 cmol kg⁻¹ | | 26 cmol kg⁻¹ | 23 cmol kg⁻¹ | | 16 cmol kg⁻¹ | | Base Saturation | | 96 % | | 100 % | 96 % | | 100 % | | Total Exchangeable Bases | | 19.5 cmol kg⁻¹ | | 44.8 cmol kg⁻¹ | 19.5 cmol kg⁻¹ | | 28.7 cmol kg⁻¹ | | Calcium Carbonate | | 0.4 % | | 11.2 % | 0.4 % | | 8.7 % | | Calcium Sulphate | | 0 % | | 0 % | 0 % | | 0.4 % | | Exchangeable Sodium | | 1 % | | 2 % | 1 % | | 1 % | | Electrical Conductivity | | 0.1 dS m-1 | | 0.2 dS m-1 | 0.1 dS m-1 | | 0.3 dS m-1 |
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